I too am wondering what kind of amp is used for the speakers? I want to install alpine speakers that I have lying around and am hoping I can just plug and play, without the need for an additional internal amp.

 

I switched out the speakers in my 2020 is, front door on the non ML system are 8 inch woofers, they're shallow mounts so be careful, id suggest put some roofing material inside you're door panel to avoid rattling and the passenger doors are 6.5 inch normal depth and the dash are all 4 inch, I put 3.5 inch tweeters that have a big magnet and had to shave away at the dash but it was worth it. Im running a 1600watt amp for all of it and it's insane, just need to be careful with the tuning for the bass or else you're going to get bad rattling.

 

What are the subwoofer box dimensions?
I’ve been looking for a box that fits in my 2023 Lexus is350 and they have been to big for my trunk. Thanks in advance